Floods in Northeast Brazil
http://earthobservatory.nasa.gov/New...3?img_id=17990

Drought in Ethiopia
http://earthobservatory.nasa.gov/New...3?img_id=17989

Tornadoes in Oklahoma and Missouri
http://earthobservatory.nasa.gov/New...3?img_id=17986

Global Vegetation
http://earthobservatory.nasa.gov/New...3?img_id=17984

Dust over the Mediterranean and Turkey
http://earthobservatory.nasa.gov/New...3?img_id=17983

On Apr 9, 12:27 pm, Weatherlawyer wrote:

Global Vegetation
http://earthobservatory.nasa.gov/New...ges.php3?img_i...

This one is interesting. It shows how clever techniques can be
employed:

"If you direct sunlight through a prism, you can see its varying
wavelengths in a spectrum ranging from red (the longest visible
wavelengths), through orange, yellow, green, blue, and indigo, and
eventually violet (the shortest visible wavelengths).

Researchers examine such wavelengths and their interaction with plant
life to derive NDVI.

Chlorophyll, the pigment that gives plants their greenness, absorbs
considerable visible light for use in photosynthesis, but the cell
structure of leaves reflects near-infrared light, which are
wavelengths slightly longer than the part of the spectrum that human
eyes can see.

Satellite sensors such as MODIS can detect both visible and near-
infrared light. NDVI is calculated by subtracting plants' reflectance
of red light from near-infrared light then dividing that difference by
the sum of red and near-infrared light."

I first came across this method of analysing plant life over the
planet's different regions to analyse the take-up of sunlight vss
carbon dioxide.

Northern climes have enough carbon dioxide but lack sufficient
sunlight. Tropical regions make the most of both and the bits in
between IIRC could use more CO2.